Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright (C) 2017 JRummy Apps Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.support.v4.view.ViewPager;
import java.util.Locale;

public class Main {
    private static final String FRAGMENT_ADAPTER_ID = "android:switcher:%d:%d";

    /**
     * Get a fragment in a {@link ViewPager}s adapter.
     *
     * @param manager
     *     the support fragment manager.
     *     {@link android.support.v4.app.FragmentActivity#getSupportFragmentManager()}
     * @param pager
     *     the {@link ViewPager} holding the {@link android.support.v4.app.Fragment}
     * @param position
     *     the position in the {@link ViewPager} e.g. {@link ViewPager#getCurrentItem()}
     * @param <fragment>
     *     Destination cast class type.
     * @return the fragment at this position in the {@link ViewPager}'s adapter
     */
    @SuppressWarnings("unchecked")
    public static <fragment extends android.support.v4.app.Fragment> fragment findFragmentByPosition(
            android.support.v4.app.FragmentManager manager, ViewPager pager, int position) {
        return (fragment) manager
                .findFragmentByTag(String.format(Locale.US, FRAGMENT_ADAPTER_ID, pager.getId(), position));
    }

    /**
     * Get a fragment in a {@link ViewPager}s adapter.
     *
     * @param manager
     *     the support fragment manager {@link android.app.Activity#getFragmentManager()}
     * @param pager
     *     the {@link ViewPager} holding the {@link android.app.Fragment}
     * @param position
     *     the position in the {@link ViewPager} e.g. {@link ViewPager#getCurrentItem()}
     * @param <fragment>
     *     Destination cast class type.
     * @return the fragment at this position in the {@link ViewPager}'s adapter
     */
    @SuppressWarnings("unchecked")
    public static <fragment extends android.app.Fragment> fragment findFragmentByPosition(
            android.app.FragmentManager manager, ViewPager pager, int position) {
        return (fragment) manager
                .findFragmentByTag(String.format(Locale.US, FRAGMENT_ADAPTER_ID, pager.getId(), position));
    }
}